Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided in four parts:
  1. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provide some useful information on the computer.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
  3. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to 1200 seconds. After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  4. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.

General information on the benchmark

Namenormalized-opb/mps-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-momentum2.opb
MD5SUMfdda3e6614261ac2a721bfd288fcd783
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 18541
Biggest coefficient in the objective function 81920000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 454826456
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 128000000000000001700807049216
Number of bits of the biggest number in a constraint 97
Biggest sum of numbers in a constraint 467242513675650034629158633472
Number of bits of the biggest sum of numbers99
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.182971
Number of variables19741
Total number of constraints27909
Number of constraints which are clauses10362
Number of constraints which are cardinality constraints (but not clauses)1921
Number of constraints which are nor clauses,nor cardinality constraints15626
Minimum length of a constraint1
Maximum length of a constraint730

Trace number 34233 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-27 21:07:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17753 boxname=wulflinc1 idbench=1366 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  fdda3e6614261ac2a721bfd288fcd783  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-momentum2.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-momentum2.opb 0
IDLAUNCH: 17753
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        473112 kB
Buffers:         34280 kB
Cached:         502224 kB
SwapCached:        764 kB
Active:         103712 kB
Inactive:       435084 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        472860 kB
SwapTotal:     2097136 kB
SwapFree:      2095360 kB
Dirty:            9964 kB
Writeback:           0 kB
Mapped:           5784 kB
Slab:            16924 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 21:07:36 (client local time) WITH STATUS 20 IN 13.8529 SECONDS
stats: 17753 7 13.8529 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
result: proof of false found (0)
times:
0m0.018s 0m0.012s
0m13.500s 0m0.268s
s UNSATISFIABLE
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.84 0.95 0.91 2/55 15427
Raw data (stat): 15427 (runsolver) R 15426 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 744198938 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+9.99995 s]
Raw data (loadavg): 0.86 0.95 0.91 2/56 15430
Raw data (stat): 15427 (vallstSAT2005PB) S 15426 8378 8377 0 -1 0 321 232 0 0 1 1 0 0 20 0 1 0 744198938 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 2128
[startup+14.1741 s]
Raw data (loadavg): 0.86 0.95 0.91 1/54 15434
Raw data (stat): 15427 (vallstSAT2005PB) S 15426 8378 8377 0 -1 0 321 232 0 0 1 1 0 0 20 0 1 0 744198938 2179072 242 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 1132560122 3222414538 0 0 17 1 0 0
Raw data (statm): 532 242 485 147 0 385 0
vsize: 0

Child status: 20
Real time (s): 14.1739
CPU time (s): 13.8529
CPU user time (s): 13.5329
CPU system time (s): 0.319951
CPU usage (%): 97.7353
Max. virtual memory (Kb): 2128
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####